Stackable organizer bin



FIG. 1 is a rear elevation view of a stackable organizer bin showing my new design, with the broken line showing of two other bins, central support, and base member for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a bottom & side perspective view thereof; and,

FIG. 6 is a top & side perspective view thereof. 

The ornamental design for a stackable organizer bin, as shown and described. 